I have several systems that all need to load the same properties to the JVM. I can use the -D flag to load one property at a time, but i am looking for something that will load
If you use Ant to lanuch the Java process, 9000's answer (plus his windows comment) will work, and you can have the launcher deal with the OS difference.
There is a StackOverflow thread here which describes how to determine the OS from ant